#head {
  background: #fff !important;
}
#head .headMain {
  position: relative;
  width: 1100px;
  height: 80px;
  margin: 0 auto;
}
#head .headMain > .logo {
  float: left;
  margin-top: 30px;
}
#head .headMain > .nav {
  float: right;
  margin-top: 50px;
}
#head .headMain > .nav > .list > li {
  float: left;
  margin-left: 40px;
  position: relative;
}
#head .headMain > .nav > .list > li .up {
  position: absolute;
  color: #000;
  width: 0;
  overflow: hidden;
  transition: width .5s;
}
#head .headMain > .nav > .list > li .down {
  color: #009ee0;
}
#head .headMain > .nav > .list > li:hover .up {
  width: 100%;
}
#head .headMain > .arrow {
  position: absolute;
  left: 50%;
  bottom: -11px;
  width: 21px;
  height: 11px;
  background: url(../img/menuIndicator.png);
  transition: 1s left;
  z-index: 2;
}
#head .headMain .music {
  float: left;
  width: 14px;
  height: 14px;
  margin: 50px 0 0 5px;
  background: url(../img/musicon.gif);
  cursor: pointer;
}
#content {
  position: relative;
  background: gray;
  overflow: hidden;
  width: 100%;
}
#content li {
  position: relative;
  background-position: center;
  overflow: hidden;
}
#content li section {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  width: 1100px;
  height: 520px;
}
#content > .list {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  transition: 1s top;
}
#content > .list > .home {
  background: url(../img/bg1.jpg) no-repeat center;
}
#content > .list > .home section .home1 {
  width: 100%;
  height: 100%;
  perspective: 500px;
  transform-style: preserve-3d;
  transition: 1s;
}
#content > .list > .home section .home1 > li {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  visibility: hidden;
}
#content > .list > .home section .home1 > li.active {
  visibility: visible;
}
#content > .list > .home section .home1 > li.leftHide {
  visibility: hidden;
  animation: 1s leftHide 1 linear;
}
#content > .list > .home section .home1 > li.rightShow {
  visibility: visible;
  animation: 1s rightShow 1 linear;
}
#content > .list > .home section .home1 > li.leftShow {
  visibility: visible;
  animation: 1s leftShow 1 linear;
}
#content > .list > .home section .home1 > li.rightHide {
  visibility: hidden;
  animation: 1s rightHide 1 linear;
}
#content > .list > .home section .home1 > li > div {
  color: #fff;
  text-align: center;
  margin-top: 200px;
}
#content > .list > .home section .home1 > li:nth-child(1) {
  background: #dc6c5f;
}
#content > .list > .home section .home1 > li:nth-child(2) {
  background: #95dc84;
}
#content > .list > .home section .home1 > li:nth-child(3) {
  background: #64b9d2;
}
#content > .list > .home section .home1 > li:nth-child(4) {
  background: #000000;
}
#content > .list > .home section .home2 {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  text-align: center;
  transition: 1s;
}
#content > .list > .home section .home2 li {
  display: inline-block;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  margin: 2px;
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 0 4px rgba(25, 25, 25, 0.8);
  cursor: pointer;
}
#content > .list > .home section .home2 li.active {
  background: #fff;
  cursor: default;
}
#content > .list > .course {
  position: relative;
  background: url(../img/bg2.jpg) no-repeat center;
}
#content > .list > .course .course1 {
  position: relative;
  margin: 50px;
  z-index: 1;
}
#content > .list > .course .course2 {
  position: relative;
  margin-left: 50px;
  width: 400px;
  z-index: 1;
}
#content > .list > .course .course3 {
  position: absolute;
  right: 50px;
  top: 70px;
  width: 480px;
  z-index: 1;
}
#content > .list > .course .course3 .item {
  position: relative;
  float: left;
  width: 120px;
  height: 132px;
  perspective: 500px;
  transform-style: preserve-3d;
}
#content > .list > .course .course3 .item:hover .front {
  transform: rotateY(360deg);
}
#content > .list > .course .course3 .item:hover .back {
  transform: rotateY(180deg);
}
#content > .list > .course .course3 .item .front,
#content > .list > .course .course3 .item .back {
  position: absolute;
  box-sizing: border-box;
  left: 0;
  top: 0;
  padding: 15px;
  width: 100%;
  height: 100%;
  transition: 1s;
}
#content > .list > .course .course3 .item .front {
  transform: rotateY(180deg);
  backface-visibility: hidden;
  background: #009ee0;
  color: #fff;
}
#content > .list > .course .course3 .item .back {
  background-position: 50% 50% !important;
  backface-visibility: hidden;
}
#content > .list > .course .course3 .item:nth-of-type(1) .back {
  background: url(../img/bks.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(2) .back {
  background: url(../img/apcoa.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(3) .back {
  background: url(../img/binoli.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(4) .back {
  background: url(../img/gu.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(5) .back {
  background: url(../img/hlx.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(6) .back {
  background: url(../img/lbs.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(7) .back {
  background: url(../img/leonberg.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(8) .back {
  background: url(../img/tata.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(9) .back {
  background: url(../img/bks.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(10) .back {
  background: url(../img/bks.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(11) .back {
  background: url(../img/bks.png) no-repeat;
}
#content > .list > .course .course3 .item:nth-of-type(12) .back {
  background: url(../img/bks.png) no-repeat;
}
#content > .list > .course .course3 .line {
  position: absolute;
  top: -px;
  width: 9px;
  height: 410px;
  background: url(../img/plus_row.png) no-repeat;
}
#content > .list > .course .course3 .line:nth-of-type(1) {
  left: -5px;
}
#content > .list > .course .course3 .line:nth-of-type(2) {
  left: 115px;
}
#content > .list > .course .course3 .line:nth-of-type(3) {
  left: 235px;
}
#content > .list > .course .course3 .line:nth-of-type(4) {
  left: 355px;
}
#content > .list > .course .course3 .line:nth-of-type(5) {
  left: 475px;
}
#content > .list > .course .plane1 {
  width: 359px;
  height: 283px;
  background: url(../img/plane1.png) no-repeat;
  position: absolute;
  left: 300px;
  top: -100px;
  transition: 1s;
}
#content > .list > .course .plane2 {
  width: 309px;
  height: 249px;
  background: url(../img/plane2.png) no-repeat;
  position: absolute;
  left: -100px;
  top: 200px;
  transition: 1s;
}
#content > .list > .course .plane3 {
  width: 230px;
  height: 182px;
  background: url(../img/plane3.png) no-repeat;
  position: absolute;
  left: 300px;
  top: 400px;
  transition: 1s;
}
#content > .list > .works {
  background: url(../img/bg4.jpg) no-repeat center;
}
#content > .list > .works .works1 {
  position: relative;
  margin: 50px 0 100px 50px;
  z-index: 1;
}
#content > .list > .works .works2 {
  position: relative;
  margin-left: 50px;
  z-index: 1;
}
#content > .list > .works .works2 .item {
  position: relative;
  float: left;
  width: 220px;
  height: 133px;
  margin: 0 1px;
  overflow: hidden;
}
#content > .list > .works .works2 .item:hover > .mask {
  opacity: 0.8;
}
#content > .list > .works .works2 .item:hover img {
  transform: rotate(30deg) scale(1.5);
}
#content > .list > .works .works2 .item:last-child {
  width: 332px;
}
#content > .list > .works .works2 .item > .mask {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  box-sizing: border-box;
  padding: 10px;
  color: #fff;
  background-color: #000;
  opacity: 0;
  transition: .5s opacity;
}
#content > .list > .works .works2 .item > .mask .icon {
  width: 32px;
  height: 34px;
  margin: 10px auto;
  background: url(../img/zoomico.png) no-repeat;
  transition: .5s;
}
#content > .list > .works .works2 .item > .mask .icon:hover {
  background-position: 0 -35px;
}
#content > .list > .works .works2 .item img {
  transition: 0.5s;
}
#content > .list > .works .works3 {
  position: absolute;
  left: 900px;
  top: 170px;
  width: 167px;
  height: 191px;
  background: url(../img/robot.png) no-repeat;
  animation: works3Move 5s linear infinite;
  z-index: 1;
}
#content > .list > .works .pencel1 {
  width: 180px;
  height: 97px;
  background: url(../img/pencel1.png) no-repeat;
  position: absolute;
  transition: 1s;
  left: 500px;
  top: 0;
}
#content > .list > .works .pencel2 {
  width: 268px;
  height: 38px;
  background: url(../img/pencel2.png) no-repeat;
  position: absolute;
  transition: 1s;
  left: 300px;
  top: 250px;
}
#content > .list > .works .pencel3 {
  width: 441px;
  height: 231px;
  background: url(../img/pencel3.png) no-repeat;
  position: absolute;
  transition: 1s;
  left: 650px;
  top: 300px;
}
#content > .list > .about {
  background: url(../img/bg3.jpg) no-repeat center;
}
#content > .list > .about .about1 {
  margin: 50px 0 100px 50px;
}
#content > .list > .about .about2 {
  width: 400px;
  margin-left: 50px;
}
#content > .list > .about .about3 > .item {
  width: 260px;
  height: 200px;
  border: 5px solid rgba(255, 255, 255, 0.5);
  border-radius: 8px;
  position: absolute;
  z-index: 2;
  overflow: hidden;
  transition: 1s transform;
}
#content > .list > .about .about3 > .item:nth-child(1) {
  left: 750px;
  top: 50px;
}
#content > .list > .about .about3 > .item:nth-child(1) > span {
  background: url(../img/about2.jpg) no-repeat;
  transform: scale(1.5);
  transition: 1s;
}
#content > .list > .about .about3 > .item:nth-child(2) {
  left: 600px;
  top: 290px;
}
#content > .list > .about .about3 > .item:nth-child(2) > span {
  background: url(../img/about4.jpg) no-repeat;
  transform: scale(1.5);
  transition: 1s;
}
#content > .list > .about .about3 > .item:hover span {
  transform: scale(1);
}
#content > .list > .about .about3 > .item > span,
#content > .list > .about .about3 > .item ul {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
}
#content > .list > .about .about3 > .item ul li {
  float: left;
  position: relative;
  overflow: hidden;
}
#content > .list > .about .about3 > .item ul li img {
  position: absolute;
  transition: 1s;
}
#content > .list > .about .line {
  position: absolute;
  left: 50%;
  top: -100px;
  width: 357px;
  height: 998px;
  background: url(../img/greenLine.png) no-repeat;
}
#content > .list > .team {
  background: url(../img/bg5.jpg) no-repeat center;
}
#content > .list > .team .team1 {
  float: left;
  margin: 50px;
  width: 400px;
  transition: 1s;
}
#content > .list > .team .team2 {
  float: right;
  margin: 50px;
  width: 400px;
  transition: 1s;
}
#content > .list > .team ul {
  position: absolute;
  left: 50%;
  top: 250px;
  margin-left: -472px;
  width: 944px;
  height: 448px;
}
#content > .list > .team ul li {
  float: left;
  width: 118px;
  height: 100%;
  background: url(../img/team.png) no-repeat;
  transition: 1s;
}
#content > .list > .team ul li:nth-child(1) {
  background-position: 0 0;
}
#content > .list > .team ul li:nth-child(2) {
  background-position: -118px 0;
}
#content > .list > .team ul li:nth-child(3) {
  background-position: -236px 0;
}
#content > .list > .team ul li:nth-child(4) {
  background-position: -354px 0;
}
#content > .list > .team ul li:nth-child(5) {
  background-position: -472px 0;
}
#content > .list > .team ul li:nth-child(6) {
  background-position: -590px 0;
}
#content > .list > .team ul li:nth-child(7) {
  background-position: -708px 0;
}
#content > .list > .team ul li:nth-child(8) {
  background-position: -826px 0;
}
#content > .dot {
  position: fixed;
  right: 10px;
  top: 50%;
}
#content > .dot li {
  margin-top: 10px;
  width: 10px;
  height: 10px;
  border: 2px #fff solid;
  border-radius: 50%;
  cursor: pointer;
}
#content > .dot li.active {
  background: #fff;
  cursor: default;
}
@keyframes works3Move {
  0% {
    transform: translateX(0px) rotateY(0deg);
  }
  49% {
    transform: translateX(-490px) rotateY(0deg);
  }
  50% {
    transform: translateX(-500px) rotateY(180deg);
  }
  100% {
    transform: translateX(0px) rotateY(180deg);
  }
}
@keyframes leftHide {
  0% {
    visibility: visible;
  }
  50% {
    transform: translateX(-50%) rotateY(30deg) scale(0.8);
  }
  100% {
    transform: translateZ(-200px);
  }
}
@keyframes rightShow {
  0% {
    visibility: hidden;
    transform: translateZ(-200px);
  }
  50% {
    transform: translateX(50%) rotateY(-30deg) scale(0.8);
  }
  100% {
    visibility: visible;
  }
}
@keyframes leftShow {
  0% {
    visibility: hidden;
    transform: translateZ(-200px);
  }
  50% {
    transform: translateX(-50%) rotateY(30deg) scale(0.8);
  }
  100% {
    visibility: visible;
  }
}
@keyframes rightHide {
  0% {
    visibility: visible;
  }
  50% {
    transform: translateX(50%) rotateY(-30deg) scale(0.8);
  }
  100% {
    transform: translateZ(-200px);
  }
}
